Polyzois G L, Hensten-Pettersen A, Kullmann A
School of Dentistry, University of Athens, Greece.
J Prosthet Dent. 1994 May;71(5):500-4. doi: 10.1016/0022-3913(94)90190-2.
The physical properties of two room-temperature vulcanizing (RTV) silicones, A-2186 and Silbione 71556, and one high-temperature vulcanizing (HTV) material, Mollomed, were compared. The potential cytotoxicity of the silicone materials was assessed with the agarose overlay test. The properties that were investigated were tensile strength, percentage elongation, modulus, permanent set, tear strength, and hardness. The properties tested were selected because of their clinical significance for fabricating facial prostheses. The results of this study indicate that the A-2186 material has a better combination of high tear strength and elongation at break with a softer surface compared with Mollomed silicone, and Silbione 71556 silicone proved to be the weakest material. All materials demonstrated absence of cytotoxicity in the cell culture tests.
比较了两种室温硫化（RTV）硅酮A - 2186和Silbione 71556以及一种高温硫化（HTV）材料Mollomed的物理性能。采用琼脂糖覆盖试验评估了硅酮材料的潜在细胞毒性。所研究的性能包括拉伸强度、伸长率百分比、模量、永久变形、撕裂强度和硬度。选择这些测试性能是因为它们在制造面部假体方面具有临床意义。本研究结果表明，与Mollomed硅酮相比，A - 2186材料具有更高的撕裂强度和断裂伸长率，且表面更柔软，性能组合更佳，而Silbione 71556硅酮被证明是最弱的材料。所有材料在细胞培养测试中均未显示出细胞毒性。
